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- #!/bin/bash -e
- # This script is an experiment to clone litecoin into a
- # brand new coin + blockchain.
- # Projeto original de tiagosh, modifidaco por Filipe Ospina.
- # The script will perform the following steps:
- # 1) create first a docker image with ubuntu ready to build and run the new coin daemon
- # 2) clone GenesisH0 and mine the genesis blocks of main, test and regtest networks in the container (this may take a lot of time)
- # 3) clone litecoin
- # 4) replace variables (keys, merkle tree hashes, timestamps..)
- # 5) build new coin
- # 6) run 4 docker nodes and connect to each other
- #
- # By default the script uses the regtest network, which can mine blocks
- # instantly. If you wish to switch to the main network, simply change the
- # CHAIN variable below
- # change the following variables to match your new coin
- COIN_NAME="MyCoin"
- COIN_UNIT="MYC"
- # 42 million coins at total (litecoin total supply is 84000000)
- TOTAL_SUPPLY=42000000
- MAINNET_PORT="54321"
- TESTNET_PORT="54322"
- PHRASE="Some newspaper headline that describes something that happened today"
- # First letter of the wallet address. Check https://en.bitcoin.it/wiki/Base58Check_encoding
- PUBKEY_CHAR="20"
- # number of blocks to wait to be able to spend coinbase UTXO's
- COINBASE_MATURITY=100
- # leave CHAIN empty for main network, -regtest for regression network and -testnet for test network
- CHAIN="-regtest"
- # this is the amount of coins to get as a reward of mining the block of height 1. if not set this will default to 50
- #PREMINED_AMOUNT=10000
- # warning: change this to your own pubkey to get the genesis block mining reward
- GENESIS_REWARD_PUBKEY=044e0d4bc823e20e14d66396a64960c993585400c53f1e6decb273f249bfeba0e71f140ffa7316f2cdaaae574e7d72620538c3e7791ae9861dfe84dd2955fc85e8
- # dont change the following variables unless you know what you are doing
- LITECOIN_BRANCH=0.14
- GENESISHZERO_REPOS=https://github.com/lhartikk/GenesisH0
- LITECOIN_REPOS=https://github.com/litecoin-project/litecoin.git
- LITECOIN_PUB_KEY=040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9
- LITECOIN_MERKLE_HASH=97ddfbbae6be97fd6cdf3e7ca13232a3afff2353e29badfab7f73011edd4ced9
- LITECOIN_MAIN_GENESIS_HASH=12a765e31ffd4059bada1e25190f6e98c99d9714d334efa41a195a7e7e04bfe2
- LITECOIN_TEST_GENESIS_HASH=4966625a4b2851d9fdee139e56211a0d88575f59ed816ff5e6a63deb4e3e29a0
- LITECOIN_REGTEST_GENESIS_HASH=530827f38f93b43ed12af0b3ad25a288dc02ed74d6d7857862df51fc56c416f9
- MINIMUM_CHAIN_WORK_MAIN=0x000000000000000000000000000000000000000000000006805c7318ce2736c0
- MINIMUM_CHAIN_WORK_TEST=0x000000000000000000000000000000000000000000000000000000054cb9e7a0
- COIN_NAME_LOWER=$(echo $COIN_NAME | tr '[:upper:]' '[:lower:]')
- COIN_NAME_UPPER=$(echo $COIN_NAME | tr '[:lower:]' '[:upper:]')
- DIRNAME=$(dirname $0)
- DOCKER_NETWORK="172.18.0"
- DOCKER_IMAGE_LABEL="newcoin-env"
- OSVERSION="$(uname -s)"
- docker_build_image()
- {
- IMAGE=$(docker images -q $DOCKER_IMAGE_LABEL)
- if [ -z $IMAGE ]; then
- echo Building docker image
- if [ ! -f $DOCKER_IMAGE_LABEL/Dockerfile ]; then
- mkdir -p $DOCKER_IMAGE_LABEL
- cat <<EOF > $DOCKER_IMAGE_LABEL/Dockerfile
- FROM ubuntu:16.04
- RUN echo deb http://ppa.launchpad.net/bitcoin/bitcoin/ubuntu xenial main >> /etc/apt/sources.list
- RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv D46F45428842CE5E
- RUN apt-get update
- RUN apt-get -y install ccache git libboost-system1.58.0 libboost-filesystem1.58.0 libboost-program-options1.58.0 libboost-thread1.58.0 libboost-chrono1.58.0 libssl1.0.0 libevent-pthreads-2.0-5 libevent-2.0-5 build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils libboost-system-dev libboost-filesystem-dev libboost-chrono-dev libboost-program-options-dev libboost-test-dev libboost-thread-dev libdb4.8-dev libdb4.8++-dev libminiupnpc-dev libzmq3-dev libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler libqrencode-dev python-pip
- RUN pip install construct==2.5.2 scrypt
- EOF
- fi
- docker build --label $DOCKER_IMAGE_LABEL --tag $DOCKER_IMAGE_LABEL $DIRNAME/$DOCKER_IMAGE_LABEL/
- else
- echo Docker image already built
- fi
- }
- docker_run_genesis()
- {
- mkdir -p $DIRNAME/.ccache
- docker run -v $DIRNAME/GenesisH0:/GenesisH0 $DOCKER_IMAGE_LABEL /bin/bash -c "$1"
- }
- docker_run()
- {
- mkdir -p $DIRNAME/.ccache
- docker run -v $DIRNAME/GenesisH0:/GenesisH0 -v $DIRNAME/.ccache:/root/.ccache -v $DIRNAME/$COIN_NAME_LOWER:/$COIN_NAME_LOWER $DOCKER_IMAGE_LABEL /bin/bash -c "$1"
- }
- docker_stop_nodes()
- {
- echo "Stopping all docker nodes"
- for id in $(docker ps -q -a -f ancestor=$DOCKER_IMAGE_LABEL); do
- docker stop $id
- done
- }
- docker_remove_nodes()
- {
- echo "Removing all docker nodes"
- for id in $(docker ps -q -a -f ancestor=$DOCKER_IMAGE_LABEL); do
- docker rm $id
- done
- }
- docker_create_network()
- {
- echo "Creating docker network"
- if ! docker network inspect newcoin &>/dev/null; then
- docker network create --subnet=$DOCKER_NETWORK.0/16 newcoin
- fi
- }
- docker_remove_network()
- {
- echo "Removing docker network"
- docker network rm newcoin
- }
- docker_run_node()
- {
- local NODE_NUMBER=$1
- local NODE_COMMAND=$2
- mkdir -p $DIRNAME/miner${NODE_NUMBER}
- if [ ! -f $DIRNAME/miner${NODE_NUMBER}/$COIN_NAME_LOWER.conf ]; then
- cat <<EOF > $DIRNAME/miner${NODE_NUMBER}/$COIN_NAME_LOWER.conf
- rpcuser=${COIN_NAME_LOWER}rpc
- rpcpassword=$(cat /dev/urandom | env LC_CTYPE=C tr -dc a-zA-Z0-9 | head -c 32; echo)
- EOF
- fi
- docker run --net newcoin --ip $DOCKER_NETWORK.${NODE_NUMBER} -v $DIRNAME/miner${NODE_NUMBER}:/root/.$COIN_NAME_LOWER -v $DIRNAME/$COIN_NAME_LOWER:/$COIN_NAME_LOWER $DOCKER_IMAGE_LABEL /bin/bash -c "$NODE_COMMAND"
- }
- generate_genesis_block()
- {
- if [ ! -d GenesisH0 ]; then
- git clone $GENESISHZERO_REPOS
- pushd GenesisH0
- else
- pushd GenesisH0
- git pull
- fi
- if [ ! -f ${COIN_NAME}-main.txt ]; then
- echo "Mining genesis block... this procedure can take many hours of cpu work.."
- docker_run_genesis "python /GenesisH0/genesis.py -a scrypt -z \"$PHRASE\" -p $GENESIS_REWARD_PUBKEY 2>&1 | tee /GenesisH0/${COIN_NAME}-main.txt"
- else
- echo "Genesis block already mined.."
- cat ${COIN_NAME}-main.txt
- fi
- if [ ! -f ${COIN_NAME}-test.txt ]; then
- echo "Mining genesis block of test network... this procedure can take many hours of cpu work.."
- docker_run_genesis "python /GenesisH0/genesis.py -t 1486949366 -a scrypt -z \"$PHRASE\" -p $GENESIS_REWARD_PUBKEY 2>&1 | tee /GenesisH0/${COIN_NAME}-test.txt"
- else
- echo "Genesis block already mined.."
- cat ${COIN_NAME}-test.txt
- fi
- if [ ! -f ${COIN_NAME}-regtest.txt ]; then
- echo "Mining genesis block of regtest network... this procedure can take many hours of cpu work.."
- docker_run_genesis "python /GenesisH0/genesis.py -t 1296688602 -b 0x207fffff -n 0 -a scrypt -z \"$PHRASE\" -p $GENESIS_REWARD_PUBKEY 2>&1 | tee /GenesisH0/${COIN_NAME}-regtest.txt"
- else
- echo "Genesis block already mined.."
- cat ${COIN_NAME}-regtest.txt
- fi
- MAIN_PUB_KEY=$(cat ${COIN_NAME}-main.txt | grep "^pubkey:" | $SED 's/^pubkey: //')
- MERKLE_HASH=$(cat ${COIN_NAME}-main.txt | grep "^merkle hash:" | $SED 's/^merkle hash: //')
- TIMESTAMP=$(cat ${COIN_NAME}-main.txt | grep "^time:" | $SED 's/^time: //')
- BITS=$(cat ${COIN_NAME}-main.txt | grep "^bits:" | $SED 's/^bits: //')
- MAIN_NONCE=$(cat ${COIN_NAME}-main.txt | grep "^nonce:" | $SED 's/^nonce: //')
- TEST_NONCE=$(cat ${COIN_NAME}-test.txt | grep "^nonce:" | $SED 's/^nonce: //')
- REGTEST_NONCE=$(cat ${COIN_NAME}-regtest.txt | grep "^nonce:" | $SED 's/^nonce: //')
- MAIN_GENESIS_HASH=$(cat ${COIN_NAME}-main.txt | grep "^genesis hash:" | $SED 's/^genesis hash: //')
- TEST_GENESIS_HASH=$(cat ${COIN_NAME}-test.txt | grep "^genesis hash:" | $SED 's/^genesis hash: //')
- REGTEST_GENESIS_HASH=$(cat ${COIN_NAME}-regtest.txt | grep "^genesis hash:" | $SED 's/^genesis hash: //')
- popd
- }
- newcoin_replace_vars()
- {
- if [ -d $COIN_NAME_LOWER ]; then
- echo "Warning: $COIN_NAME_LOWER already existing. Not replacing any values"
- return 0
- fi
- if [ ! -d "litecoin-master" ]; then
- # clone litecoin and keep local cache
- git clone -b $LITECOIN_BRANCH $LITECOIN_REPOS litecoin-master
- else
- echo "Updating master branch"
- pushd litecoin-master
- git pull
- popd
- fi
- git clone -b $LITECOIN_BRANCH litecoin-master $COIN_NAME_LOWER
- pushd $COIN_NAME_LOWER
- # first rename all directories
- for i in $(find . -type d | grep -v "^./.git" | grep litecoin); do
- git mv $i $(echo $i| $SED "s/litecoin/$COIN_NAME_LOWER/")
- done
- # then rename all files
- for i in $(find . -type f | grep -v "^./.git" | grep litecoin); do
- git mv $i $(echo $i| $SED "s/litecoin/$COIN_NAME_LOWER/")
- done
- # now replace all litecoin references to the new coin name
- for i in $(find . -type f | grep -v "^./.git"); do
- $SED -i "s/Litecoin/$COIN_NAME/g" $i
- $SED -i "s/litecoin/$COIN_NAME_LOWER/g" $i
- $SED -i "s/LITECOIN/$COIN_NAME_UPPER/g" $i
- $SED -i "s/LTC/$COIN_UNIT/g" $i
- done
- $SED -i "s/84000000/$TOTAL_SUPPLY/" src/amount.h
- $SED -i "s/1,48/1,$PUBKEY_CHAR/" src/chainparams.cpp
- $SED -i "s/1317972665/$TIMESTAMP/" src/chainparams.cpp
- $SED -i "s;NY Times 05/Oct/2011 Steve Jobs, Apple’s Visionary, Dies at 56;$PHRASE;" src/chainparams.cpp
- $SED -i "s/= 9333;/= $MAINNET_PORT;/" src/chainparams.cpp
- $SED -i "s/= 19335;/= $TESTNET_PORT;/" src/chainparams.cpp
- $SED -i "s/$LITECOIN_PUB_KEY/$MAIN_PUB_KEY/" src/chainparams.cpp
- $SED -i "s/$LITECOIN_MERKLE_HASH/$MERKLE_HASH/" src/chainparams.cpp
- $SED -i "s/$LITECOIN_MERKLE_HASH/$MERKLE_HASH/" src/qt/test/rpcnestedtests.cpp
- $SED -i "0,/$LITECOIN_MAIN_GENESIS_HASH/s//$MAIN_GENESIS_HASH/" src/chainparams.cpp
- $SED -i "0,/$LITECOIN_TEST_GENESIS_HASH/s//$TEST_GENESIS_HASH/" src/chainparams.cpp
- $SED -i "0,/$LITECOIN_REGTEST_GENESIS_HASH/s//$REGTEST_GENESIS_HASH/" src/chainparams.cpp
- $SED -i "0,/2084524493/s//$MAIN_NONCE/" src/chainparams.cpp
- $SED -i "0,/293345/s//$TEST_NONCE/" src/chainparams.cpp
- $SED -i "0,/1296688602, 0/s//1296688602, $REGTEST_NONCE/" src/chainparams.cpp
- $SED -i "0,/0x1e0ffff0/s//$BITS/" src/chainparams.cpp
- $SED -i "s,vSeeds.push_back,//vSeeds.push_back,g" src/chainparams.cpp
- if [ -n "$PREMINED_AMOUNT" ]; then
- $SED -i "s/CAmount nSubsidy = 50 \* COIN;/if \(nHeight == 1\) return COIN \* $PREMINED_AMOUNT;\n CAmount nSubsidy = 50 \* COIN;/" src/validation.cpp
- fi
- $SED -i "s/COINBASE_MATURITY = 100/COINBASE_MATURITY = $COINBASE_MATURITY/" src/consensus/consensus.h
- # reset minimum chain work to 0
- $SED -i "s/$MINIMUM_CHAIN_WORK_MAIN/0x00/" src/chainparams.cpp
- $SED -i "s/$MINIMUM_CHAIN_WORK_TEST/0x00/" src/chainparams.cpp
- # change bip activation heights
- # bip 34
- $SED -i "s/710000/0/" src/chainparams.cpp
- # bip 65
- $SED -i "s/918684/0/" src/chainparams.cpp
- # bip 66
- $SED -i "s/811879/0/" src/chainparams.cpp
- # TODO: fix checkpoints
- popd
- }
- build_new_coin()
- {
- # only run autogen.sh/configure if not done previously
- if [ ! -e $COIN_NAME_LOWER/Makefile ]; then
- docker_run "cd /$COIN_NAME_LOWER ; bash /$COIN_NAME_LOWER/autogen.sh"
- docker_run "cd /$COIN_NAME_LOWER ; bash /$COIN_NAME_LOWER/configure"
- fi
- # always build as the user could have manually changed some files
- docker_run "cd /$COIN_NAME_LOWER ; make -j2"
- }
- if [ $DIRNAME = "." ]; then
- DIRNAME=$PWD
- fi
- cd $DIRNAME
- # sanity check
- case $OSVERSION in
- Linux*)
- SED=sed
- ;;
- Darwin*)
- SED=$(which gsed 2>/dev/null)
- if [ $? -ne 0 ]; then
- echo "please install gnu-sed with 'brew install gnu-sed'"
- exit 1
- fi
- SED=gsed
- ;;
- *)
- echo "This script only works on Linux and MacOS"
- exit 1
- ;;
- esac
- if ! which docker &>/dev/null; then
- echo Please install docker first
- exit 1
- fi
- if ! which git &>/dev/null; then
- echo Please install git first
- exit 1
- fi
- case $1 in
- stop)
- docker_stop_nodes
- ;;
- remove_nodes)
- docker_stop_nodes
- docker_remove_nodes
- ;;
- clean_up)
- docker_stop_nodes
- for i in $(seq 2 5); do
- docker_run_node $i "rm -rf /$COIN_NAME_LOWER /root/.$COIN_NAME_LOWER" &>/dev/null
- done
- docker_remove_nodes
- docker_remove_network
- rm -rf $COIN_NAME_LOWER
- if [ "$2" != "keep_genesis_block" ]; then
- rm -f GenesisH0/${COIN_NAME}-*.txt
- fi
- for i in $(seq 2 5); do
- rm -rf miner$i
- done
- ;;
- start)
- if [ -n "$(docker ps -q -f ancestor=$DOCKER_IMAGE_LABEL)" ]; then
- echo "There are nodes running. Please stop them first with: $0 stop"
- exit 1
- fi
- docker_build_image
- generate_genesis_block
- newcoin_replace_vars
- build_new_coin
- docker_create_network
- docker_run_node 2 "cd /$COIN_NAME_LOWER ; ./src/${COIN_NAME_LOWER}d $CHAIN -listen -noconnect -bind=$DOCKER_NETWORK.2 -addnode=$DOCKER_NETWORK.1 -addnode=$DOCKER_NETWORK.3 -addnode=$DOCKER_NETWORK.4 -addnode=$DOCKER_NETWORK.5" &
- docker_run_node 3 "cd /$COIN_NAME_LOWER ; ./src/${COIN_NAME_LOWER}d $CHAIN -listen -noconnect -bind=$DOCKER_NETWORK.3 -addnode=$DOCKER_NETWORK.1 -addnode=$DOCKER_NETWORK.2 -addnode=$DOCKER_NETWORK.4 -addnode=$DOCKER_NETWORK.5" &
- docker_run_node 4 "cd /$COIN_NAME_LOWER ; ./src/${COIN_NAME_LOWER}d $CHAIN -listen -noconnect -bind=$DOCKER_NETWORK.4 -addnode=$DOCKER_NETWORK.1 -addnode=$DOCKER_NETWORK.2 -addnode=$DOCKER_NETWORK.3 -addnode=$DOCKER_NETWORK.5" &
- docker_run_node 5 "cd /$COIN_NAME_LOWER ; ./src/${COIN_NAME_LOWER}d $CHAIN -listen -noconnect -bind=$DOCKER_NETWORK.5 -addnode=$DOCKER_NETWORK.1 -addnode=$DOCKER_NETWORK.2 -addnode=$DOCKER_NETWORK.3 -addnode=$DOCKER_NETWORK.4" &
- echo "Docker containers should be up and running now. You may run the following command to check the network status:
- for i in \$(docker ps -q); do docker exec \$i /$COIN_NAME_LOWER/src/${COIN_NAME_LOWER}-cli $CHAIN getinfo; done"
- echo "To ask the nodes to mine some blocks simply run:
- for i in \$(docker ps -q); do docker exec \$i /$COIN_NAME_LOWER/src/${COIN_NAME_LOWER}-cli $CHAIN generate 2 & done"
- exit 1
- ;;
- *)
- cat <<EOF
- Usage: $0 (start|stop|remove_nodes|clean_up)
- - start: bootstrap environment, build and run your new coin
- - stop: simply stop the containers without removing them
- - remove_nodes: remove the old docker container images. This will stop them first if necessary.
- - clean_up: WARNING: this will stop and remove docker containers and network, source code, genesis block information and nodes data directory. (to start from scratch)
- EOF
- ;;
- esac
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